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Finding the Fourth Proportional to 633.81, 874.69 and 354.04

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Solution

The fourth proportional to 633.81, 874.69 and 354.04 is: 488.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.81 : 874.69 = 354.04 : x
  2. Step 2: Convert to fraction form
    633.81/874.69 = 354.04/x
  3. Step 3: Cross multiply
    633.81x = 874.69 × 354.04
  4. Step 4: Simplify right side
    633.81x = 309,673.48
  5. Step 5: Solve for x
    x = 309,673.48/633.81
  6. Step 6: Final answer
    x = 488.59

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